Axle-gage



Uwrrsn STATE PATENT omen JAMES F. DUNIGAN, OF TORRINGTON, CONNECTICUT.

AXLE-GAG E.

SPECIFICATION forming part of Letters Patent N 0. 605,863, dated June 21, 1898.

Application filed July 21, 1897. $erial No. 645,393- (No model.) I

To all whom, it may concern.-

Be it known that 1, JAMES F. DUNIGAN, a citizen of the United States, residing at Torrington, in the county of Litchfield and State of Connecticut, have invented a certain new and useful Improvement in Axle-Gages, of which the following is a specification.

My invention relates to a new and useful improvement in axle-gages, and has for its object to provide a simple, cheap, and effective device by means of which an axle, after having been repaired, may be trued up or the condition thereof demonstrated, so as to avoid the replacing of such an axle upon avehicle when the spindles thereof are not in proper condition, which would tend to rack the vehicle and cause it to run untrue.

With these ends in view this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claim.

'In order that those skilled in the art to which this invention appertains may understand how to make and use the same, the construction and operation will now be described in detail, referring to the accompanying drawings, forming a part of this specification, in which- Figure 1 illustrates my improvement when being used in connection with an axle to determine the trueness thereof; Fig. 2, an enlarged view of one end of the gage, showing especially the blades and indicators thereof; Fig. 3, a section at the lineccmof Fig. 2, looking in the direction of the arrow; and Fig; 4:, an enlarged view of the leveling-shoe, which is adapted to rest upon one spindle while the opposite spindle is to be trued up.

In carrying out my invention as here embodied I provide a beam A, which is preferably of wood, and upon one endof this beam is fitted the bracket B by having a socket formed in the shank thereof, which is secured over the tapered end of said beam. This bracket is T-shaped and has the blades C pivoted thereto at D by means of suitable screws passing through the blades and the arms of the bracket, which screws may be securely held in place by suitable jam-nuts, if occasion requires. The outer edges of these blades are so formed as to serve as straightedges, and the segmental strips E are pivoted of the segmental strips, which represent the degrees of a circle, and a pointer .I is attached to the bracket and projects into proximity to these graduations, so that when either of the blades is moved the angle at which it stands to the axial line of the beam will be indicated by the position of the pointer upon the grad nations.

K represents the shoe-bracket, having an opening therethrough adapted to fit over the beam and provided with set-screws L for securing the same in any position upon the beam, and this bracket is provided with the shoes M, of suitable contour to fit upon the spindle of a vehicle-axle, as clearly shown in Figs. 1 and 4:.

- From this description the operation of my improvement will be obviously as follows: When an axle is being repaired and it is desired to determine whether or notv the spindles thereof are true, it is only necessary to set one or both of the blades at the angle which represents the taper of the spindles, and thenby passing one of the shoes upon one of the spindles and bringing one of the blades into contact with the opposite spindle the trueness or otherwise of this last-named spindle will be immediately apparent, since if the spindle be not true the blade will not rest in contact therewith throughout its entire length, whereas if the spindle be true the straight edge of the beam will fit thereon.

The blades are shown as two in number for when properly finished not only forms a useful tool, but is attractive in appearance-as, for instance, the beam maybe varnished, the brackets japanned, and the blades and segmental strips polished and plated or blued.

Having thus fully described my invention, what I claim as new and useful is A gage consisting of a beam, a T-shaped bracket having a tapered socket fitting on one end of said beam, the arms of said bracket being slotted to produce ears, graduated segmental strips secured to said blades, thumbscrews threaded into the bracket through slots in the segmental strips, a pointer se- XVILLARD A. RORABACK, ABNER H. \VADHAMS. 

